fix: ctrl+c does not end the child process

[wll8]

See: coderaiser/cloudcmd#190

this.on('kill', (code) => {
    // Can only end the first process
    // child.kill(code);

    // Can end subprocess, but at the expense of `code`
    import('fkill').then(fkill => fkill.default(child.pid, {
        force: true,
    })).catch(err => {
        console.log(`Process has been terminated, or other errors.`)
    });
});

[coderaiser]

Would be great to have test for this using 📼Supertape

[wll8]

You add this test harness in this repository and then I add test cases?

[coderaiser]

You can install it and use just like in restafary and other packages

[coderaiser]

I'm preparing Cloud Commander to ESM, so we can use regular import instead of dynamic coderaiser/cloudcmd@9f4a23e